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NetSure™ ITM with eSure™ Technology
Installation Manual, Section 6040 (Issue AB, April 8, 2013)
Spec. No: 582145500
62
Section 6040
Model: NetSure™ ITM Issue AB, April 8, 2013
7.5.4 DC Output Specifications
Figure 30 System Efficiency Curve
Regulation (PCU)
a. Voltage Regulation: ±1%.
b. Load Regulation: ±0.5%.
c. Line Regulation: ±0.1%.
d. Overshoot at Startup: ±1%.
e. Dynamic Response (at rated input and output voltage values):
•Response time is 200 µs, and the overshoot is 5% for load changes at 50%-25%-50% and 50%-
75%-50%.
•Overshoot or undershoot is 5% and within ±1% of the regulation band, 4 ms at 50 µs for load
changes at 10%-90% and 90%-10%.
Filtering
Typical readings were taken at nominal input voltage, nominal output voltage, 50% load, and 25
degrees C ambient.
a. Wide Band Noise: Complies with Telcordia GR-947-CORE.
1. Typically 55 millivolts peak-to-peak. Does not exceed 200 millivolts peak-to-peak
2. Typically 15.9 millivolts rms. Does not exceed 100 millivolts rms.
Hold Up Time
10 ms (The DC voltage is allowed to decrease to 42V from 54V during the test.)
Table 17 DC Output Specifications
Voltage
Normal Operation: -54.5 VDC (battery float)
Nominal: -48VDC
Range: -42 to -58 VDC
System Efficiency
96% peak
(system level including
branch distribution losses).
See Figure 30.
Energy Optimization Mode;
Intelligent Power Matching
Allows operation at near-peak efficiency
down to 5% overall load.
Distribution Types
22 Circuit Breakers, 100-200A each;
Optional: 6 Fuses, 100-500A each